Polyhedral Methods for Space Curves Exploiting Symmetry Applied to the Cyclic nroots Problem
Abstract
We present a polyhedral algorithm to manipulate positive dimensional solution sets. Using facet normals to Newton polytopes as pretropisms, we focus on the first two terms of a Puiseux series expansion. The leading powers of the series are computed via the tropical prevariety. This polyhedral algorithm is well suited for exploitation of symmetry, when it arises in systems of polynomials. Initial form systems with pretropisms in the same group orbit are solved only once, allowing for a systematic filtration of redundant data. Computations with cddlib, Gfan, PHCpack, and Sage are illustrated on cyclic $n$roots polynomial systems.
 Publication:

arXiv eprints
 Pub Date:
 September 2011
 arXiv:
 arXiv:1109.0241
 Bibcode:
 2011arXiv1109.0241A
 Keywords:

 Mathematics  Numerical Analysis;
 Mathematics  Algebraic Geometry
 EPrint:
 Accepted for publication in the proceedings of CASC 2013